[CentOS] dumb sendmail question -- how to get outbound messages to use "example.com" instead of hostname? SOLVED

> Are you talking about what appears on the "from" header line.  If so,
> these instuctions:
> http://www.stevesearle.com/tech/centos5.0.svr.html#sendmail explain  
> how

Ah.

One needs to comment out the "EXPOSED_USER" variable -- i.e., make it  
look like:
	dnl # EXPOSED_USER(`root')dnl

Thanks, guys! I think I'd have banged my head on this one for a long  
while, because it would work for all users *except* root, and I was  
testing it as root (and actually need it to work for root, too).

best,
Jeff